Refund from online order

Following the communication from Makro, it seems they are playing delay tactics and stringing me along. Yesterday I received an email from Makro stating that "Your Makro return request # ***6 has been refunded" it will take 7 working days for the money to reflect in my account, however, today, I am contacted by Lerato Modise from customer services asking for proof of payment for the item, of which I purchased online, and paid with electronic eft. Makro had said the money will be refunded to the account I paid with. But now I am required to prove the actual payment, what irritates me is that I should have been told this last week already. Where is the processed refund paid to, if they now need proof of payment. I am very irritated by this run around, and it seems I am being made a fool.